Home / 215,506.81-323,310.76-65,747.04

Finding the Fourth Proportional to 215,506.81, 323,310.76 and 65,747.04

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Solution

The fourth proportional to 215,506.81, 323,310.76 and 65,747.04 is: 98,635.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,506.81 : 323,310.76 = 65,747.04 : x
  2. Step 2: Convert to fraction form
    215,506.81/323,310.76 = 65,747.04/x
  3. Step 3: Cross multiply
    215,506.81x = 323,310.76 × 65,747.04
  4. Step 4: Simplify right side
    215,506.81x = 21,256,725,141.42
  5. Step 5: Solve for x
    x = 21,256,725,141.42/215,506.81
  6. Step 6: Final answer
    x = 98,635.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.